CN1039128C - Super macro-porous network polyurethane and method for prepn. of same - Google Patents
Super macro-porous network polyurethane and method for prepn. of same Download PDFInfo
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- CN1039128C CN1039128C CN94100411A CN94100411A CN1039128C CN 1039128 C CN1039128 C CN 1039128C CN 94100411 A CN94100411 A CN 94100411A CN 94100411 A CN94100411 A CN 94100411A CN 1039128 C CN1039128 C CN 1039128C
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Abstract
The present invention relates to a method for making super macroporous network polyurethane materials, which can be used for filtering materials, sound-absorbing materials, liquid guiding materials and inner liner materials. A liquid polymer with an end hydroxyl group and polyisocyanate are used as main raw materials. A super macroporous network polyurethane material contains the components of the following weight ratio: 100 wt. % of liquid polymer with an end hydroxyl group, 40 to 90 wt. % of polyisocyanate, 0.06 to 0.5 wt. % of tertiary amine catalytic agent, 0 to 2 wt. % of alcohol amine catalytic agent, 0.1 to 0.6 wt. % of tin salt catalyst, 3 to 7 wt. % of foaming agent, 6 to 24 wt. % of auxiliary foaming agent, 0.2 to 2 wt. % of foam stabilizing agent and pigment with proper amount. Material is exactly added according to the dosage range of components, is stirred, is evenly mixed at high speed and then is poured into a box body for foaming and gelatination. After curing, a required material is obtained.
Description
The present invention relates to a kind of macromolecular material engineering, particularly relate to a kind of filtering material that can be used as, the preparation method of the polyurethane material of sound absorbent material, water conservancy diversion material and inner lining material.
U.S. Pat-3,475, a kind of method with warm air scumming hole wall is disclosed in 525, the big problem of resistance when this method has solved polyurethane material hole wall because of general production method preparation and causes fluid to see through more, improved the permeability of mean pore size to a certain extent less than 1 millimeter macropore polyurethane foam, but owing to be subjected to the restriction of foam aperture, its permeability does not still adapt to the application requiring as filtering material, sound absorbent material, water conservancy diversion material etc.
The objective of the invention is to overcome the shortcoming of above-mentioned background technology, provide a kind of and regulate the foaming that relates in the manufacturing processed and the speed of relative movement of these two principal reactions of gelation, thereby can prepare the method for the polyurethane material of wide aperture, coarse grid by changing catalyst type and consumption thereof.It can be widely used in the demanding Application Areas of convection cell permeability.For example: aspects such as acoustic(al)absorbent and inner lining material in dirt-G﹠O-gas separating and filtering, air conditioning machinery cold air stream distribution plate, the audio amplifier.
Purpose of the present invention can reach by following measure:
Comprise foamable reaction, the preparation method of the network-like polyurethane material of oversized hole of gelation reaction and slaking reaction, it is characterized in that: its adopts molecular weight is that 300-6000, hydroxyl value are that terminal hydroxy liquid polymkeric substance and the polyisocyanates of 20-200 is main raw material, it each form and consumption as follows:
Terminal hydroxy liquid polymkeric substance 100 weight parts
Polyisocyanates 46-90 weight part
Tertiary amine catalyst 0.06-0.5 weight part
Alcohol amine catalyst 0-2 weight part
Pink salt catalyzer 0.1-0.6 weight part
Whipping agent---water 3-7 weight part
Blowing promotor 6-24 weight part
Suds-stabilizing agent 0.2-2 weight part
Pigment is an amount of:
In above-mentioned each composition:
The terminal hydroxy liquid polymkeric substance is meant polyether glycol or polyester polyols or polybutadiene polyol or their vinylbenzene and acrylonitrile grafting thing and their mixture;
Tertiary amine or/and pure amine catalyst refer to triethylenediamine or 2,2 '-dimethylin ether or triethylamine or N-alkyl morpholine or trolamine or diethanolamine and composition thereof;
The organic acid tin salt catalyzer refers to dibutyl tin laurate or stannous octoate and composition thereof;
Whipping agent is a water;
Blowing promotor refers to the mixture of fluorine Lyons or methylene dichloride or methylene dichloride, fluorine Lyons and lower boiling alkane, and its blended weight ratio is 1: 5-5: 1:
Suds-stabilizing agent refers to silicone oil or contains polyoxyethylene glycol or polyoxyethylene glycol and polypropylene glycol segmental water-soluble silicon oil or contain the low-molecular weight compound of polyoxyethylene glycol segment and organic group;
The mixture or the modifier of polyisocyanates nail phenylene diisocyanate or '-diphenylmethane diisocyanate and their industrial crude product, blended weight ratio are 9: 1～6: 4.
Key of the present invention is by selecting and the kind of definite catalyzer and consumption thereof are regulated the foaming in the preparation process and the speed of relative movement of these two principal reactions of gelation, gelation reaction was also finished in succession when foamable reaction was finished, pass through the kind and the consumption thereof of selection and definite suds-stabilizing agent simultaneously, obtain suitable froth stability, make reaction system in foaming process, small bubbles constantly break, and the big abscess that interpenetrates constantly forms, and the speed of collapse of bubbles speed and foamable reaction and gelation reaction is complementary.
After each composition accurate measurement, use the homogenizer thorough mixing according to a conventional method, then the material of mixing is poured into and carried out foamable reaction and gelation reaction in the casing, after treating that these two reactions finish, put into baking oven for heating slaking or room temperature cure, by taking out in the casing, remove epidermis and promptly get oversized hole, network-like polyurethane material after the slaking
The present invention compares background technology and has following advantage:
1, the prepared network-like polyurethane material channels and collaterals of the oversized hole diameter of the present invention is at the 0.1-0.8 millimeter, and mean pore size is in 2-10 millimeter scope.
2, because the material channels and collaterals of the present invention's preparation are thicker, so this strength of materials is good.
3, because the material aperture of the present invention's preparation is big, so its fluid permeability is good.Its not only alternative general macropore polyurethane foamed material is car, ship inner lining material etc. for example, but also can be widely used as the very high filtering material of convection cell permeability requirement, sound absorbent material, water conservancy diversion material etc.
4, raw material of the present invention is easy to get, technology is simple.
The contriver once did a large amount of selectivity experiments to each component and consumption thereof, and the present invention is further illustrated in conjunction with following embodiment:
Embodiment 1:
(1), drop into homogenizer and mix by after the following prescription accurate measurement:
Hydroxyl value is 56 polyether-tribasic alcohol 100 grams
Triethylenediamine 0.1 gram
Or 2,2 '-dimethylin ether 0.08 gram
Stannous octoate 0.2 gram
Water 6 grams
Freon-11 20 grams
Suds-stabilizing agent L-520 0.2 gram
Tolylene diisocyanate TDI 73 grams
Lithol Red 0.5 gram
Triethylenediamine and 2,2 in the above-mentioned material '-the dimethylin ether can choose any one kind of them; Suds-stabilizing agent L-520 is U.S. combinating carbide company trade names, and it belongs to water-soluble silicon oil.
(2) material that is mixed is poured into immediately and is foamed in the casing and gelation reaction.
(3) after reaction is finished, put into baking oven for heating slaking or room temperature cure.
(4) take out from casing after the slaking, remove epidermis and promptly get the network-like polyurethane material of oversized hole, its channels and collaterals diameter is 0.4 millimeter, and mean pore size is 3 millimeters.
Embodiment 2
(1), drop into homogenizer and mix by after the following prescription accurate measurement:
2: 1 (weight ratio) mixtures, 100 grams of the graft polyether of polyether-tribasic alcohol and hydroxyl value 28
1: 2 (weight ratio) mixture, 0.2 gram of triethylenediamine and N-ethylmorpholine
2: 1 (weight ratio) mixtures, 0.46 gram of stannous octoate and dibutyl tin laurate
Water 5.2 grams
1: 1 (weight ratio) mixture, 7.5 grams of methylene dichloride and pentane
Suds-stabilizing agent L-520 0.4 gram
Fatty alcohol-polyoxyethylene ether 0.6 gram
7: 3 (weight ratio) mixtures, 67 grams of tolylene diisocyanate TDI and '-diphenylmethane diisocyanate MDI
(2), (3), (4) are with embodiment 1.
By the network-like polyurethane material of oversized hole that above-mentioned formulation is come out, its channels and collaterals diameter is 0.6 millimeter, and mean pore size is 9 millimeters.
Embodiment 3:
(1), drop into homogenizer and mix by after the following prescription accurate measurement:
1: 1 (weight ratio) mixture, 100 grams of the hydroxy-terminated polybutadienes of hydroxyl value 71 and hydroxyl value 56 polyether-tribasic alcohols
1: 2 (weight ratio) mixture, 0.2 gram of triethylenediamine and N-ethylmorpholine
Diethanolamine 0.5 gram
Stannous octoate 0.3 gram
Water 6.5 grams
2: 1 (weight ratio) mixtures, 12 grams of Freon-11 and sherwood oil (BP30-60 ℃)
1 of suds-stabilizing agent L-520 and tween-80: 1. mixture 0.4 restrains
Mixture 70 grams of 4: 1 (weight ratio) of the industrial crude product of tolylene diisocyanate TDI and '-diphenylmethane diisocyanate MDI
(2), (3), (4) are with embodiment 1.
By the network-like polyurethane material of oversized hole that above-mentioned formulation is come out, its channels and collaterals diameter is 0.7 millimeter, and mean pore size is 4 millimeters.
Embodiment 4:
(1), drop into homogenizer and mix by after the following prescription accurate measurement:
Hydroxyl value is 28 graft polyether 100 grams
Triethylenediamine 0.4 gram
Dibutyl tin laurate 0.6 gram
Water 4.6 grams
Dimethyl silicone oil 0.1 gram
Tween-80 0.6 gram
Freon-11 24 grams
Toluene diisocynate acid esters TDI 73 grams
Above-mentioned material tween-80 is the nonionogenic tenside that contains polyoxyethylene glycol segment and organic group.
(2), (3), (4) are with embodiment 1.
By the network-like polyurethane material of oversized hole that above-mentioned formulation is come out, its channels and collaterals diameter is 0.8 millimeter, and mean pore size is 3 millimeters.
Claims (3)
1, comprises foamable reaction, gelation reaction and ripe preparation method than the network-like polyurethane material of oversized hole that reacts, it is characterized in that: its adopts molecular weight is that 300-6000, hydroxyl value are that terminal hydroxy liquid polymkeric substance and the polyisocyanates of 20-200 is main raw material, and its each component and consumption thereof are as follows:
Terminal hydroxy liquid polymkeric substance 100 weight parts
Polyisocyanates 46-90 weight part
Tertiary amine catalyst 0.06-0.5 weight part
Alcohol amine catalyst 0-2 weight part
Pink salt catalyzer 0.1-0.6 weight part
Whipping agent---water 3-7 weight part
Blowing promotor 6-24 weight part
Suds-stabilizing agent 0.2-2 weight part
Pigment is an amount of;
In above-mentioned each composition:
The terminal hydroxy liquid polymkeric substance is meant polyether glycol or polyester polyol or polybutadiene polyol or their vinylbenzene and acrylonitrile grafting thing and their mixture:
Blowing promotor refers to the mixture of fluorine Lyons or methylene dichloride or methylene dichloride, fluorine Lyons and lower boiling alkane, and its blended weight ratio is 1: 5-5: 1;
Suds-stabilizing agent refers to silicone oil or contains polyoxyethylene glycol or polyoxyethylene glycol and polypropylene glycol segmental water-soluble silicon oil or contain the low-molecular weight compound of polyoxyethylene glycol segment and organic group;
The mixture or the modifier of polyisocyanates nail phenylene diisocyanate or '-diphenylmethane diisocyanate and their industrial crude product, blended weight ratio are 9: 1-6: 4;
After each composition accurate measurement, use the homogenizer thorough mixing according to a conventional method, then the material of mixing is poured into and carried out foamable reaction and gelation reaction in the casing, after treating that these two reactions finish, put into baking oven for heating slaking or room temperature cure, by taking out in the casing, remove epidermis and promptly get oversized hole, network-like polyurethane material after the slaking
2, the preparation method of the network-like polyurethane material of oversized hole according to claim 1, it is characterized in that: tertiary amine or/and pure amine catalyst refer to triethylenediamine or 2,2 '-dimethylin ether or triethylamine or N-alkyl morpholine or trolamine or diethanolamine and composition thereof; The organic acid tin salt catalyzer refers to dibutyl tin laurate or/and stannous octoate and composition thereof, and its mixed weight ratio is 5: 1-1: 5.
3, the preparation method of the network-like polyurethane material of oversized hole according to claim 1 is characterized in that using the nonionogenic tenside that contains polyoxyethylene glycol segment and organic group and traditional water-soluble silicon oil or dimethyl silicone oil jointly as suds-stabilizing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94100411A CN1039128C (en) | 1994-01-20 | 1994-01-20 | Super macro-porous network polyurethane and method for prepn. of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94100411A CN1039128C (en) | 1994-01-20 | 1994-01-20 | Super macro-porous network polyurethane and method for prepn. of same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1093381A CN1093381A (en) | 1994-10-12 |
| CN1039128C true CN1039128C (en) | 1998-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94100411A Expired - Fee Related CN1039128C (en) | 1994-01-20 | 1994-01-20 | Super macro-porous network polyurethane and method for prepn. of same |
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| CN (1) | CN1039128C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4567423B2 (en) * | 2004-11-19 | 2010-10-20 | 住友ゴム工業株式会社 | Tire silencer |
| CN101298490B (en) * | 2008-06-13 | 2010-09-01 | 陈春潮 | Memory foam and production method thereof |
| CN102399436B (en) * | 2010-09-11 | 2013-04-17 | 烟台正海汽车内饰件有限公司 | Coarse-cell polyurethane foam board produced with wet method |
| CN102115546B (en) * | 2010-12-29 | 2012-10-10 | 清华大学 | Preparation method of hydrophilic cation type polyurethane foam plastic by means of direct foaming |
| CN103275299A (en) * | 2013-05-17 | 2013-09-04 | 谢小莲 | Method for preparing high-density large-aperture polyurethane mesh material |
| CN104072741B (en) * | 2014-07-09 | 2016-01-27 | 湖南工学院 | A kind of polyester polyol and polyurethane foams and preparation method |
| CN106751745A (en) * | 2016-12-16 | 2017-05-31 | 苏州富艾姆工业设备有限公司 | A kind of polyurethane foam plastics for upholstery and preparation method thereof |
| KR20180076956A (en) * | 2016-12-28 | 2018-07-06 | 현대자동차주식회사 | Polyurethane foam composition for sound absorbing material |
| CN106830114A (en) * | 2017-01-20 | 2017-06-13 | 合肥通用机械研究院 | A kind of air conditioner test water system quality purifying device for water |
| CN108794719B (en) * | 2018-06-01 | 2021-02-19 | 江苏钟山化工有限公司 | Polyether composition for preparing reticulated polyurethane foam and application thereof |
| CN109627415B (en) * | 2018-12-29 | 2021-05-28 | 上海优玥新材料科技有限公司 | Energy-consuming microporous elastomer material containing branched chains and preparation and application thereof |
| CN110862675A (en) * | 2019-11-27 | 2020-03-06 | 湖北世丰汽车内饰有限公司 | Low-air-permeability polyester sponge and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4575520A (en) * | 1984-01-24 | 1986-03-11 | Bayer Aktiengesellschaft | Rigid, closed-cell, flame-resistant polyurethane foams |
| JPS61250039A (en) * | 1985-04-30 | 1986-11-07 | Human Ind Corp | Production of polyurethane foam |
-
1994
- 1994-01-20 CN CN94100411A patent/CN1039128C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4575520A (en) * | 1984-01-24 | 1986-03-11 | Bayer Aktiengesellschaft | Rigid, closed-cell, flame-resistant polyurethane foams |
| JPS61250039A (en) * | 1985-04-30 | 1986-11-07 | Human Ind Corp | Production of polyurethane foam |
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| Publication number | Publication date |
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| CN1093381A (en) | 1994-10-12 |
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